On 7/15/20 4:14 AM, Song Bao Hua (Barry Song) wrote: >> From: Mike Kravetz [mailto:mike.krav...@oracle.com] >> huge_page_size(h)/1024); >> >> + if (order >= MAX_ORDER && hugetlb_cma_size) >> + hugetlb_cma_reserve(order); > > Hello, Mike, > I am not sure if it is necessarily correct as the order for gigantic pages is > arch-dependent: > https://lkml.org/lkml/2020/7/1/14 >
See my reply to Wil. The code to allocate gigantic pages from CMA depends on the arch independent definition of gigantic page which is 'order >= MAX_ORDER'. -- Mike Kravetz
